Does Pet Insurance Cover Heart Disease and Heart Murmurs?
Heart disease in pets rarely arrives as a single bill. It arrives as a murmur at a routine exam, then an echocardiogram, then a drug the dog takes twice a day for the rest of its life, with a cardiology recheck every few months and, at some point, an emergency. Insurance handles each of those pieces, but only if the policy was in place before the first one.
Valve, muscle, or rhythm: how insurers file heart disease
Three kinds dominate. Mitral valve disease, a leaking valve, is the common heart problem of small older dogs, and in Cavalier King Charles Spaniels the majority have a murmur from it by their senior years. Dilated cardiomyopathy, a weakened heart muscle, runs in Dobermans and Great Danes. Arrhythmogenic right ventricular cardiomyopathy, usually called Boxer cardiomyopathy, is a rhythm disease. Subaortic stenosis, a narrowing below the aortic valve that’s present from birth, shows up in Golden Retrievers, Rottweilers, and Boxers. It’s also the breed heart defect of the Newfoundland, where it’s usually heard as a puppy murmur. In cats, hypertrophic cardiomyopathy, a thickened heart wall, is the defining risk of Maine Coons, Ragdolls, and Sphynx cats. Devon Rex and Norwegian Forest Cats carry the same risk. It’s reported in Birman lines too, in a breed with little else on its file.
At insurers with a hereditary and congenital clause, an inherited heart condition can fall under it; confirm how your policy classifies it. Because they’re inherited or present from birth, they sit in the hereditary and congenital clause, and a policy that excludes or caps that clause excludes most heart disease. Embrace covers breed-specific, genetic, and congenital conditions on its standard policy with no rider; Pets Best, ASPCA Pet Health Insurance, Spot, Trupanion, and Healthy Paws list hereditary and congenital conditions as covered when they aren’t pre-existing.
The murmur at the puppy exam
A murmur is a sound, and a note that says “grade 2 murmur, recheck” is a sign of a condition under the pre-existing definitions we’ve read. Trupanion’s California policy defines pre-existing as any condition with vet advice, treatment, or signs or symptoms before the effective date or during a waiting period, and Pennsylvania’s pet insurance law uses nearly the same words. Puppy and kitten murmurs are sometimes innocent and fade, but if one is in the record before the policy starts, an insurer can tie a later diagnosis back to it. Florida and Ohio law put the burden of proving a pre-existing exclusion on the insurer, which helps in a dispute; it doesn’t erase the note. Does pet insurance cover pre-existing conditions explains the definitions. The practical rule for a heart breed is the same as for hips: enroll before the first exam that might hear something.
Echo, Holter, cardiologist: the diagnostic chain
The workup is where the first real money goes. Chest X-rays, an electrocardiogram, blood pressure, and an echocardiogram, the ultrasound that actually sees the valve or the muscle, are diagnostics, and diagnostics follow the condition: covered if the heart disease is, excluded if it’s pre-existing. Boxer cardiomyopathy adds a Holter monitor, a 24-hour ECG worn at home. Most of this happens at a cardiology referral practice, and none of the insurers we’ve reviewed publishes a network, so the specialist’s invoice is reimbursed like any other. Two lines to check: the exam or consultation fee, which Trupanion and Healthy Paws exclude, Embrace and Lemonade sell as an add-on, and ASPCA, Spot, and most Pets Best plans include; and whether the reimbursement rate holds at a specialist, which Figo states it does. Blood work and X-rays and MRI and CT scans explain how the diagnostics are paid.
Pimobendan every day for years: the chronic clause and the limit
Once diagnosed, heart disease is managed, not cured. Pimobendan, diuretics, and other drugs run daily for the rest of the pet’s life, with rechecks every few months and an echocardiogram at intervals. Two clauses carry that. The first is prescription medication: Trupanion covers prescriptions, Embrace sells an Rx add-on, and ASPCA lists prescription medication as covered; without that line, the single biggest recurring cost of heart disease is yours. The second is the renewal clause. Better policies keep covering a condition diagnosed during the policy year at every renewal: Pets Best states chronic conditions aren’t reclassified as pre-existing, ASPCA covers chronic conditions across plan years, and California and Pennsylvania law bar a covered condition from becoming pre-existing at renewal.
The deductible structure matters too. On an annual deductible you pay it again every year the medication continues; on Trupanion’s lifetime per-condition deductible, chosen between $0 and $1,000, you pay it once for the heart and then get 90% of every heart claim after. What is a deductible compares the two.
Two NAPHIA heart claims above $42,000
Heart disease can also produce the one bill nobody plans for: congestive heart failure, which means an emergency visit, oxygen, and a hospital stay. NAPHIA’s report on 2025 data lists the largest claims its members paid, and two of the ten largest dog claims were hearts: $43,600 for valvular heart disease in a 13-year-old Jack Russell in Middletown, Delaware, and $42,600 for heart disease in a 10-year-old Cavalier in Gainesville, Florida. Those are extremes, not averages, but they show why a low annual limit is the wrong setting for a heart breed. Published limits start at $2,500 at ASPCA and Spot and $5,000 at Healthy Paws, Lemonade, Figo, and Pets Best; most go up to unlimited, and Trupanion has no cap. What an annual limit is shows the arithmetic, and a per-condition limit, which caps the whole disease across years, is the structure to avoid.
Cavaliers, Dobermans, Boxers, Maine Coons: enrolling the heart breeds
For the breeds above, the order of operations is fixed. Enroll the puppy or kitten before any exam records a murmur. Confirm in the policy document that hereditary and congenital conditions are covered without a cap, that prescription medication is in, and that a chronic condition stays covered at renewal. Set the limit high or unlimited. Then keep the policy running, because a lapse followed by a diagnosis makes the heart pre-existing on the next policy. For a senior pet with a clean record it’s still worth doing; pet insurance for older dogs and senior cats cover the age rules. For a pet whose murmur is already on file, the honest expectation is that the heart is out and everything else is in, and after a diagnosis explains what a policy still does.
Frequently asked questions
Does pet insurance cover a heart murmur?
A murmur is a sign, not a diagnosis, and insurers treat it as one. If a vet records a murmur before your policy starts or during the waiting period, the heart condition behind it is pre-existing. If the murmur is first heard after coverage begins, the workup and whatever it finds are covered on policies that include hereditary conditions.
Is heart disease a pre-existing condition for pet insurance?
Only if it was diagnosed or showed signs before enrollment or during the waiting period. Heart disease is chronic, so once it's pre-existing it stays excluded on the policies we've read; the curable-condition rules at several insurers don't apply to chronic conditions.
Does pet insurance cover cardiomyopathy?
Yes. Dilated cardiomyopathy in dogs and hypertrophic cardiomyopathy in cats are covered as hereditary illnesses when they aren't pre-existing. Both are managed for years, so the renewal clause matters as much as the hereditary one.
Does pet insurance cover heart medication like pimobendan?
Prescription medication for a covered condition is covered at many insurers, and some sell it as an add-on: Trupanion includes prescriptions, Embrace offers an Rx add-on, and ASPCA lists prescription medication as covered. Confirm the medication line before you count on years of refills.
Does pet insurance cover a cardiologist?
Yes. None of the insurers we've reviewed publishes a provider network, so a referral to a veterinary cardiologist is reimbursed on the same terms as your regular vet. Figo says its reimbursement rate isn't reduced at specialist hospitals; at other insurers check the exam-fee and specialist wording.
This article is general information, not insurance or veterinary advice. Coverage, prices, and terms vary by insurer, pet, and location. Always read the policy and confirm details with the provider before buying.